<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/Welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索区域 -->
      <el-row :gutter="20">
        <el-col :span="6">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button
            type="primary"
            class="button-style"
            @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              @change="userStateChanged(scope.row)"
              v-model="scope.row.mg_state"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="修改"
              placement="top"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip
              class="item"
              effect="dark"
              content="删除"
              placement="top"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="userpass">
          <el-input type="password" v-model="addForm.userpass"></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
          :rules="[
            { required: true, message: '请输入邮箱地址', trigger: 'blur' },
            {
              type: 'email',
              message: '请输入正确的邮箱地址',
              trigger: ['blur', 'change'],
            },
          ]"
        >
          <el-input type="email" v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="phone">
          <el-input type="phone" v-model="addForm.phone"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="adduser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item
          label="邮箱"
          prop="email"
          :rules="[
            { required: true, message: '请输入邮箱地址', trigger: 'blur' },
            {
              type: 'email',
              message: '请输入正确的邮箱地址',
              trigger: ['blur', 'change'],
            },  
          ]"
        >
          <el-input v-model="editForm.email" type="email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile" type="mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%" @close="setRoleDialogClose" >
      <div>
        <p>当前的用户:{{ userInfo.username }}</p>
        <p>当前的角色:{{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option v-for="item in roleList" :key="item.id"
            :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 2,
      },
      userList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: "",
        userpass: "",
        email: "",
        phone: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度在 3 ~10 位",
            trigger: "blur",
          },
        ],
        userpass: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, max: 12, message: "密码长度在6~12 位", trigger: "blur" },
        ],
        email: [{ required: true, message: "请输入邮箱地址", trigger: "blur" }],
        phone: [{ required: true, message: "请输入手机号码", trigger: "blur" }],
      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象保存
      editForm: {},
      //修改表单的验证对象
      editFormRules: {
        email: [{ required: true, message: "请输入邮箱地址", trigger: "blur" }],
        mobile: [
          { required: true, message: "请输入手机号码", trigger: "blur" },
        ],
      },
      //控制分配角色对话框显示与隐藏
      setRoleDialogVisible: false,
      //需要被分配角色的用户信息
      userInfo: {},
      //所有角色的数据列表
      roleList: [],
      //已选中的角色ID值
      selectRoleId:'',
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) return this.$message.error("获取失败");
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    //监听 pagesize改变事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch开关状态的改变
    async userStateChanged(userinfo) {
      //   console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败");
      } else {
        this.$message.success("更新成功");
      }
    },
    //监听添加用户对话框的关闭时间
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    //点击按钮进行添加新用户
    adduser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        //可以添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          this.$message.error("用户添加失败");
        }
        this.$message.success("用户添加成功");
        this.addDialogVisible = false;
        //重新获取用户表单
        this.getUserList();
      });
    },
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) return this.$message.error("获取用户失败");
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //监听修改用户对话框的关闭
    editDialogClose() {
      this.$refs.editFormRef.resetFields();
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        console.log(valid);
        if (!valid) return;
        //发起修改用户请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) return this.$message.error("更新失败");
        this.$message.success("更新成功");
        //关闭对话框
        this.editDialogVisible = false;
        this.getUserList();
      });
    },
    //根据ID，来删除用户
    async removeUserById(id) {
      //弹框询问是否删除数据
      const confirmResult = await this.$confirm("是否删除用户?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      }).catch((err) => err);

      //如果用户确认删除，则返回值为字符串 confirm
      //取消删除 ，则返回值为cancel
      // console.log(confirmResult)
      if (confirmResult !== "confirm") return this.$message.info("取消了删除");

      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) {
        this.$message.error("删除失败");
      }
      this.$message.success("删除成功");
      this.getUserList();
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;

      //在展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败");
      }
      this.roleList = res.data;
      this.setRoleDialogVisible = true;
    },
    //点击按钮，进行角色分配
    async saveRoleInfo(){
      if(!this.selectRoleId){
        return this.$message.error('请选择分配角色')
      }
    const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`)
    if (res.meta.status !==200) {
      this.$message.error('分配角色失败')
    }
      this.$message.success('分配角色成功');

      this.getUserList();
      this.setRoleDialogVisible =false;
    },
    //分配角色对话框关闭
    setRoleDialogClose(){
      this.selectRoleId= '',
      this.userInfo = {}
    },
  },
};
</script>

<style scoped>
</style>